Bay window in an upper story, supported from below by projecting corbels. Usually semihexagonal or rectangular in plan, oriels first became prevalent early in the 15th century. They were often placed over gateways or entrances to manor houses and public buildings of the late Gothic and Tudor periods. In cities of North Africa and the Middle East, the moucharaby is an oriel that uses grills or lattices in place of glass and shutters. See also brise-soleil
Projecting window in wall; originally a form of porch, usually of wood; side-turret
() The origin of the word oriel is derived from the Latin word aureus which means "golden"; relating to the Golden Rectangle in which the Fibonacci spiral always makes a perfect oriel pattern.